# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

### Pending

- **Relicense.** An email is out to the upstream author requesting a
  permissive software license (MIT / Apache-2.0) on the original C
  source. If granted, this crate will be relicensed and the next release
  will reflect the new terms. Until then, CC BY-NC-SA 4.0 applies.

## [0.1.0] - 2026-04-29

### Added

- Initial release. Faithful Rust port of Maurycy's `mcufont.h`
  (<https://maurycyz.com/projects/mcufont/>) — a 5×5 monospace pixel
  font, ~350 bytes of bitmap data, covering `A–Z`, `a–z`, `0–9`, and
  `- + . , ? ! : = '`.
- `no_std`, `forbid(unsafe_code)`, zero dependencies with default
  features.
- Public glyph tables: `UPPER`, `LOWER`, `DIGITS`, `SYMBOLS`.
- `glyph(c: char) -> Option<&'static Glyph>` lookup function.
- `SYM_*` index constants for direct symbol-table access.
- Feature flags: `upper`, `lower`, `numbers`, `symbols` (all on by
  default) — disable individually to save flash.
- Optional `embedded-graphics` feature exposing `eg::MCU_FONT`
  (`MonoFont<'static>`), `eg::FONT_DATA`, and `eg::McuGlyphMapping` for
  drop-in use with `MonoTextStyle` / `Text` on any `DrawTarget`
  (SSD1306 over I²C, ST7735, etc.).
- Glyph bytes packed in bits 7..=3 (MSB-first), bits 2..=0 zero —
  layout matches `embedded_graphics::image::ImageRaw` so the same data
  serves both APIs.

### Licensed under

- CC BY-NC-SA 4.0 (inherited from the upstream font data; see
  `LICENSE`). Non-commercial use only, ShareAlike. See README for
  implications and the pending relicense note.